so we'll be keeping you up-to-date on exactly president obama's briefings. very likely what's going to happen later this morning is he'll be briefed not only by lisa monaco but also likely by his attorney general, eric holder, and the director of the fbi, robert muller, because the fbi is taking the lead on that. this is what we have been seeing in recent days since the bombings on monday. but he was kept up-to-date and briefed overnight as this quickly developing situation continues to unfold. >> this situation unfolding right before our very eyes, brianna. it is interesting, president obama was here yesterday for that memorial for that prayer service right then rallying the spirits of the people of boston. and he really did a terrific job in that. right now a completely different feeling in this area because people are waking up right now to the news that they probably live in a crime scene or at least in an area right now that is being searched and very much under watch. >> juliette and i were talking earlier that the astounding news that these two indivi